US2012031493A1PendingUtilityA1

Tandem organic solar cell using a polyelectrolyte layer, and method for manufacturing the same

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Assignee: LEE KWANGHEEPriority: Apr 13, 2009Filed: Apr 13, 2010Published: Feb 9, 2012
Est. expiryApr 13, 2029(~2.7 yrs left)· nominal 20-yr term from priority
Inventors:Kwanghee LeeByoung Hoon LeeSung Heum ParkSun Hee Kim
H10K 30/151H01G 9/2009H10K 85/1135H10K 2102/103H10K 30/57H10K 85/621H10K 30/30H01G 9/2031Y02P70/50Y02E10/542Y02E10/549
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Claims

Abstract

The invention relates to a tandem organic solar cell using a polyelectrolyte layer and a method for manufacturing same. The tandem organic solar cell comprises a first electrode, a first organic photoactive layer, a recombination layer, a second organic photoactive layer, and a second electrode. The recombination layer includes an n-type semiconductor material layer and a conjugated polyelectrolyte layer.

Claims

exact text as granted — not AI-modified
1 . A tandem organic solar cell comprising:
 a first electrode;   a first organic photoactive layer formed on the first electrode;   a recombination layer formed on the first organic photoactive layer, the recombination layer comprising an n-type semiconductor material layer and a conjugated polyelectrolyte layer;   a second organic photoactive layer formed on the recombination layer; and   a second electrode formed on the second organic photoactive layer.   
     
     
         2 . The tandem organic solar cell of  claim 1 , wherein the conjugated polyelectrolyte layer contains at least one selected from the group consisting of poly(9,9-bis(6″-(N,N,N-trimethylammonium)hexyl)fluorene-alt-co-phenylene), poly((2-cyclooctatetraenylethyl)-trimethylammonium trifluoromethanesulfonate), poly-(tetramethylammonium-2-cyclooctatetraenylethanesulfonate), poly((2-methoxy-5-(3-sulfonatopropoxy)-1,4-phenylene)-1,2-ethenediyl), poly((2-methoxy-5-propyloxysulfonate-1,4-phenylenevinylene)-alt-(1,4-phenylenevinylene)), sulfonated poly(p-phenylene), sulfonated poly(phenylene ethynylene), poly(carboxylatedphenylene ethynylene), poly(N-(4-sulfonatobutyloxyphenyl)-4,4′-diphenylamine-alt-1,4-phenylene), poly(N-4,4′-diphenylamine-alt-N-(p-trifluoromethyl)phenyl-4,4′-diphenylamine), poly((9,9-bis(6′-(N,N,N-trimethylammonium)hexyl)-fluorene-2,7-diyl)-alt-(2,5-bis(pphenylene)-1,3,4-oxadiazole)), poly((9,9-bis(6′-N,N,N-trimethylammoniumbromide)hexyl)fluorene-co-alt-4,7-(2,1,3-benzothiadiazole)), and PFP(poly(9,9′-bis(4-sulfonatobutyl)fluorene-alt-co-1,4-phenylene)). 
     
     
         3 . The tandem organic solar cell of  claim 2 , wherein the conjugated polyelectrolyte layer contains H, Na, K or tetradecyltrimethylammonium (TDMA) as counter cations, or Br, BF 4 , CF 3 SO 3 , PF 6 , BPh 4 , and B(3,5-(CF 3 ) 2 C 6 H 3 ) 4 (BArF 4 ) as counter anions. 
     
     
         4 . The tandem organic solar cell of  claim 2 , wherein the conjugated polyelectrolyte layer contains a material represented by Formula 1: 
       
         
           
           
               
               
           
         
         where n may be an integer in the range from 10 to 100000. 
       
     
     
         5 . The tandem organic solar cell of  claim 1 , wherein the n-type semiconductor material layer is a metal oxide layer. 
     
     
         6 . The tandem organic solar cell of  claim 5 , wherein the metal oxide is titanium oxide, zinc oxide, tungsten oxide, vanadium oxide, or molybdenum oxide. 
     
     
         7 . The tandem organic solar cell of  claim 1 , further comprising: a first charge transport layer formed between the first electrode and the first organic photoactive layer. 
     
     
         8 . The tandem organic solar cell of  claim 1 , further comprising: a second charge transport layer formed between the second organic photoactive layer and the second electrode. 
     
     
         9 . A tandem organic solar cell comprising:
 a first electrode;   a first organic photoactive layer formed on the first electrode;   a recombination layer comprising an n-type semiconductor material layer and a conjugated polyelectrolyte layer sequentially formed on the first organic photoactive layer;   a second organic photoactive layer formed on the recombination layer; and   a second electrode formed on the second organic photoactive layer.   
     
     
         10 . The tandem organic solar cell of  claim 9 , wherein the second electrode has a lower work function than the first electrode. 
     
     
         11 . The tandem organic solar cell of  claim 9 , further comprising: a charge transport layer formed between the first electrode and the first organic photoactive layer. 
     
     
         12 . The tandem organic solar cell of  claim 11 , wherein the charge transport layer is a PEDOT:PSS layer or a conjugated polyelectrolyte layer. 
     
     
         13 . The tandem organic solar cell of  claim 9 , further comprising: a charge transport layer formed between the second organic photoactive layer and the second electrode. 
     
     
         14 . The tandem organic solar cell of  claim 13 , wherein the charge transport layer is a Ti oxide layer. 
     
     
         15 . A tandem organic solar cell comprising:
 a first electrode;   a first organic photoactive layer formed on the first electrode;   a recombination layer comprising a conjugated polyelectrolyte layer and an n-type semiconductor material layer sequentially formed on the first organic photoactive layer;   a second organic photoactive layer formed on the recombination layer; and   a second electrode formed on the second organic photoactive layer.   
     
     
         16 . The tandem organic solar cell of  claim 15 , wherein the second electrode has a higher work function than the first electrode. 
     
     
         17 . The tandem organic solar cell of  claim 15 , further comprising: a charge transport layer formed between the first electrode and the first organic photoactive layer. 
     
     
         18 . The tandem organic solar cell of  claim 17 , wherein the charge transport layer is a Ti oxide layer. 
     
     
         19 . The tandem organic solar cell of  claim 15 , further comprising: a charge transport layer formed between the second organic photoactive layer and the second electrode. 
     
     
         20 . The tandem organic solar cell of  claim 19 , wherein the charge transport layer is a PEDOT:PSS layer or a conjugated polyelectrolyte layer. 
     
     
         21 . A method for manufacturing a tandem organic solar cell, comprising:
 forming a first electrode;   forming a first organic photoactive layer on the first electrode;   forming a recombination layer on the first organic photoactive layer, the recombination layer comprising an n-type semiconductor material layer and a conjugated polyelectrolyte layer;   forming a second organic photoactive layer on the recombination layer; and   forming a second electrode on the second organic photoactive layer.   
     
     
         22 . The method of  claim 21 , wherein the conjugated polyelectrolyte layer contains at least one selected from the group consisting of poly(9,9-bis(6″-(N,N,N-trimethylammonium)hexyl)fluorene-alt-co-phenylene), poly((2-cyclooctatetraenylethyl)-trimethylammonium trifluoromethanesulfonate), poly-(tetramethylammonium-2-cyclooctatetraenylethanesulfonate), poly((2-methoxy-5-(3-sulfonatopropoxy)-1,4-phenylene)-1,2-ethenediyl), poly((2-methoxy-5-propyloxysulfonate-1,4-phenylenevinylene)-alt-(1,4-phenylenevinylene)), sulfonated poly(p-phenylene), sulfonated poly(phenylene ethynylene), poly(carboxylatedphenylene ethynylene), poly(N-(4-sulfonatobutyloxyphenyl)-4,4′-diphenylamine-alt-1,4-phenylene), poly(N-4,4′-diphenylamine-alt-N-(p-trifluoromethyl)phenyl-4,4′-diphenylamine), poly((9,9-bis(6′-(N,N,N-trimethylammonium)hexyl)-fluorene-2,7-diyl)-alt-(2,5-bis(pphenylene)-1,3,4-oxadiazole)), poly((9,9-bis(6′-N,N,N-trimethylammoniumbromide)hexyl)fluorene-co-alt-4,7-(2,1,3-benzothiadiazole)), and PFP(poly(9,9′-bis(4-sulfonatobutyl)fluorene-alt-co-1,4-phenylene)). 
     
     
         23 . The method of  claim 21 , wherein the conjugated polyelectrolyte layer contains H, Na, K or tetradecyltrimethylammonium (TDMA) as counter cations, or Br, BF 4 , CF 3 SO 3 , PF 6 , BPh 4 , and B(3,5-(CF 3 ) 2 C 6 H 3 ) 4 (BArF 4 ) as counter anions. 
     
     
         24 . The method of  claim 21 , wherein the conjugated polyelectrolyte layer contains a material represented by Formula 1: 
       
         
           
           
               
               
           
         
         where n may be an integer in the range from 10 to 100000. 
       
     
     
         25 . The method of  claim 21 , wherein the n-type semiconductor material layer is a metal oxide layer. 
     
     
         26 . The method of  claim 25 , wherein the metal oxide is titanium oxide, zinc oxide, tungsten oxide, vanadium oxide, or molybdenum oxide. 
     
     
         27 . The method of  claim 21 , further comprising: forming a first charge transport layer between the first electrode and the first organic photoactive layer. 
     
     
         28 . The method of  claim 21 , further comprising: forming a second charge transport layer between the second organic photoactive layer and the second electrode.

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